| HALS | Local history reference | 942.581/PIRUndercroft emergency stack | Not for loan (Set: 14 Dec 2011) |
| HALS | Local history reference | 942.581PIRANF | Not for loan (Set: 14 Dec 2011) |
| HALS | Local history reference | 942.581PIRANF | Not for loan (Set: 14 Dec 2011) |
| HALS | Local history reference | 942.581PIR Room 8 | Not for loan (Set: 14 Dec 2011) |
| HALS | Local history reference | 942.581PIR Room 8 | Not for loan (Set: 14 Dec 2011) |
| HALS | Local history reference | 942.581PIR | Not for loan (Set: 14 Dec 2011) |
| Hitchin Library | Local history lending | 942.581PIR Local | Available |
| Hitchin Library | Local history reference | LOC 942.581PIR | Not for loan (Set: 14 Dec 2011) |